Caffeine may be good for some aging hearts Reuters/Yahoo!News 2/21/07 "Drinking caffeinated beverages on a regular basis may provide significant protection against death from heart disease in the elderly who have normal levels of blood pressure, according to data from a large U.S. health and nutrition study...Drinking caffeinated beverages may induce a "healthy" rise in blood pressure that counteracts the drop in blood pressure that occurs after a meal, a phenomenon that becomes more pronounced as people age...People who consumed four or more servings of caffeinated beverages daily had a 53-percent lower risk of death from heart disease compared with those who consumed less than half a serving daily. Subjects who consumed two to four servings per day had a 32-percent lower risk of dying from heart disease...Caffeinated ground coffee and caffeinated instant coffee, both of which have relatively large amounts of caffeine per serving, were the only specific beverages associated with a statistically significant protective effect...This apparent protective effect of caffeinated coffee consumption was not seen in people with severe high blood pressure or those who were younger than 65 years of age."
There's got to be more going on here than merely keeping blood pressure up after meals. This explanation seems a tad thin.
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